Incandescent lamp.



No. 879,157. PATENTED FEB. 18, 1908.

A. G. PELL.

INGANDESCENT LAMP.

APPLICATION FILED MAY 13. 1907.

Wz'n essay;

AMBROSE G. FELL, OF NEW YORK, N. Y.

Speccation of Letters Patent.

-- INCANDESCENT LAMP.

Patented Feb. 18, 1908.,

Application led May 18, 1907. Serial No. 374.440.

To all whom it may concern:

Be it known that I, AMBnosn G. FELL, a citizen of the United States, residing in New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Incandescent Lamps, of which the following is a speciiication.

This invention has for its object to provide an improved arrangement of chimney for use in connection with incandescent mantle lamps, whereby the chimney is supported at or above the top portion of the mantle, in order to obviate the necessity for a chimney gallery or support at or below the burner portion of the amp; so that the rays of light can be transmitted downwardly in all directions without obstruction, orpractically none.

One o'l the objects ot the invention is to rovide a chimney that can be supported trom the supporting portion of the mantle member at present in use.

A further object of the invention is to provide means in a chimney so supported, to pre vent lateral displacement or swinging of the chimney at its lower portion. n

In the accompanying drawings, representing embodiments of my invention, Figure 1. shows a lamp having the mantle support 'Formed ot two upright rods joined by an arch portieri, whereby the mantle is carried, and the chimneycarried thereby. Fig. 2 shows in perspective, the chimney detached. Fig. 3 is a plan view of the lamp. Fig. 4 is an enlarged detail showing the chimney support as carried on the mantle support. Fig. 5 shows a modified form for carrying the chimney; and Fig. 6 shows the lower portion of the chimney used with the support shown in Fig. 5.

I-Ieretofore in the use of incandescent lamps, it has been necessary to have a gallery at the burner portion of the lamp on which to support the chimney. This member is obj ectionable as it obstructs the downward transmission of the light. It is further obj ectionable in that it interferes with the proper circulation of air or the admission of air to the outer ortion of the mantle to provide a current etween the mantle and the chimney, that must of course enter at the bottom of the chimney.

In the present invention no form of gallery whatsoever is arranged at the burner of the lamp for supporting the chimney, but the chimney is solely supported at or near the top portion of the mantle. In the construction illustrated in. Fig. 1, a lamp is shown comprising a base B, having a burner tube 12 that has an enlarged cylindrical portion 13 of the usual size to iit into the cylindrical portion 14 of the usual mantle supporting member; that are manufactured of a standard size. But the burner member has practically no portions of greater diameter than thecylindrical portion 13 that would obstruct the downward transmission oi" light. Any of the usual forms of mantle and support can be used. In this figure is shown a mantle support comprising a cap part 14 with the two upright rods 15 and 16 arched at the top where they are integrally joined. The rods have the usual loop or bend 17, around which passes the string or wire 18 carrying the mantle 19 in the usual manner. The mantle 19, as in general use, has its lower end loosely fitting the cap portion 14 of the support.. With the exception of the two brackets 20 and 21 for the mantle rods, there is absolutely no obstruction ior the downward transmission of light from the mantle, in all directions to the vertical. V

The chimney 25, that may be of any desired transparent material, such as mica or glass, is provided with a sutiable transverse member at its upper portion extending dithe light from the mantle, either laterally or in a downward direction, in any manner whatsoever. To prevent the chimney from swinging on this support as an axis, connection may be made on each side between the upright rods 15 and 16 of the mantle support, and the chimney member. In the construction shown the chimney 25 is provided with a band 26 preferably of metal at its up per portion; and a rod 27 extends diametrally across between opposite sides of the band. The rod is shown as having a loop or bend 28 at its middle portion, extending up* ward and forming a hook member that rests on the loop 17 of the mantlesupport. By this means the chimney is supported at its upper portion solely, and this upper portion is prevented from lateral displacement. At its lower portion on each side adjacent the mantle supports 15 and 16, the chimney is provided with forked portions 29 and 30, that engage the rods 15 and 16, and thereby prevent swinging of the chimney in one direction. The diameter joining these forked D portions being at right angles with the cross rod 27, the lower portion of the chimney is thereby locked against lateral displacement in all directions, as from its form of support it cannot swing in a plane connecting the forked portions.

Where the mantle support consists of a single axial or central upright rod, as the rod projecting upward from a cap 41 and carrying a mantle 42, as indicated in Fig. 5, a special member is provided for supporting the chimney. ln this view is shown a chimney support of substantially similar shape to the mantle support shown in Fig. 1. A band or sleeve 44 fits on the burner 13, resting on a small ilange 45 at the lower portion thereof. From this sleeve project upward rods 46 and 47 on opposite sides, which rods may be integrally joined by an arch 48 at the top, provided with a loop 49, similar to the 5 loop 17 of the mantle support in Fig. 1.

The chimney 25 is carried by this support in the same manner as in Fig. 1. But if preferred its lower portion may be slotted at 49 and 50 to engage shoulder portions 51 and 0 52 of the upright supports 46 and 47 3 thereby preventing lateral displacement of chimney at its lower portion. The mantle support on the chimney can also be used for supporting a shade as indicated in Fig. 1. The 5 band 26 is shown as provided with two or more lugs that project radially outward, on which the shade 56 is shown supported.

By this means it will be seen that the chimney for the mantle is supported solely at its 0 upper portion, and that the shade is supported from the chimney at the portion at which the chimney is supported whereby there is no possible obstruction to the downward transmission of the rays of light. 5 Having thus described my invention, I

claim:

1. In a lamp for incandescent mantles, the combination of a burner member, a mantle support carried by the burner, and a chimney carried solely by the mantle support.

2. In a lamp for incandescent mantles, the combination of a burner member, a mantle support carried by the burner, and a chimney carried solely by the mantle support at its upper portion.

3. In an incandescent lamp, the combination of a burner, a mantle member comprising a support carried by the burner, a chimney having a transverse member at its upper portion and engaging the mantle support whereby the chimney is solely supported.

4. In an incandescent lamp, the combination of a burner, a mantle member compris- 5 ing a support carried by the burner and having a bent portion at its upper part, a chimney having a transverse member extending diametrally across its upper portion and engaging the bent portion of the mantle support whereby the chimney is solely supported.

5. In an incandescent lamp, the combination of a burner, a mantle member comprising a support carried by the burner and having a bent portion at its upper part, a chimney having a transverse member extending diametrally across its upper portion and engaging the bent portion of the mantle support whereby the chimney is solely supported, the chimney having means at its lower part to prevent its lateral displacement.

6. In an incandescent lamp, the combination of a burner, a mantle member comprising a support carried by the burner, a chimney having a transverse member engaging the mantle support whereby the chimney is solely supported, the chimney having two portions at its lower part engaging the mantle support to prevent its lateral displacement.

7. In an incandescent lamp, the combination of a burner, a mantle member comprising a support carried by the burner and having a bent portion at its upper part, a chimney having a transverse member extending diametrally across its upper portion and engaging the bent portion of the mantle support whereby the chimney is solely supported, the chimney having portions at its lower part engaging the mantle support to prevent its lateraldisplacement.

8. In an incandescent lamp, aburner member, a mantle support fitting on the burner member and having a portion at the top by which a mantle is carried, a chimney member having a band engaging it at its upper portion, a transverse member extending` across between the opposite sid es of the band and engaging the mantle support to thereby support the chimney solely at its upper portion.

9. In an incandescent lamp, a burner member, a mantle support fitting on the burner member and having a bent portion at the top by which a mantle is carried, a chimney member having a band engaging it at its upper portion, a diametral member extending across between the o posite sides of the band and having a loopedp portion whereby it engages the bent portion of the mantle support to thereby support the chimney solely at its upper portion.

10. ln an incandescent lamp, a burner member, a mantle support fitting on the burner member and having a bent portion at the top by which a mantle is carried, a chimney member having a band engaging it at its upper portion, a diametral member extending across between the o posite sides of the band and having a loope portion whereby it engages the bent portion of the mantle support to thereby support the chimney solely at its upper portion, the chimney having fork portions at its lower end at the ends ot a diameter transverse to the said supporting member, the iork members engaging the mantle support to prevent lateral displacement ot the chimney.

11. In an incandescent lamp, a burner member, a mantle support comprising a pair of upright members having an arched connection at the top containing a bend, a mantle supported 'from the bend oi said members, and a chimney having a diametral member extending across at its upper' portion and resting on the bent portion of the mantle support whereby the chimney is solely supported.

12. In an incandescent lamp, a burner member, a mantle support comprising a pair of upright members having an arched connection at the top containing a bend, a mantle supported from the bend of said members, a chimney having a diametral member eX- tending across at its upper portion and having a bent portion resting on the bent portion ot the mantle support whereby the chimney is solely supported.

13. In an incandescent lamp, a burner member, a mantle support comprising` a pair oil" upright melnbers having an arched connection at the top containing a bend, a mantle supported from the bend ot said members,

a chimney having a diametral member extending across at its upper portion and resting on the bent portion of the mantle support whereby the chimney is solely supported, the chimney having two forked portions at its lower end, one at each side of the said transverse supporting member, the 'forked portions engaging the two upright portions oi the mantle support to prevent lateral displacement ot the chimney.

14. In an incandescent lamp, a burner member, a mantle support comprising a pair ot upright members having an arched connection at the top containing a bend, a mantle supported from the bend of said members, a chimney having a band secured thereto at its upper portion, a diametral member eX- tending across between opposite sides of the band and resting on the bent portion oi the mantle support whereby the chimney is solely supported, the chimney having two forked portions at its lower end, one at each side ot the said transverse supporting member, the forked portions engaging the two upright portions oit the mantle support to prevent a lateral displacement oi the chimney.

15, ln an incandescent lamp, a burner member, a mantle support, a mantle on the support, a band iitting on the burner, a pair ot upright members secured to the band and having an arched connection at the top containing a bend, a chimney having a diametral member extending across at its upper portion and resting on the arch portion of the support whereby the chimney is solely supported. p

16. In an incandescent lamp, a burner member, a mantle support, a mantle on the support, a band fitting on the burner, a pair of upright members secured to the band and having an arched connection at the top containing a bend, a chimney having a diametral member extending across at its upper portion and resting on the arch portion of the support whereby the chimney is solely supported, the chimney having two forked portions at its lower end, one at each side, formed portions engaging the two upright portions of the support to prevent a lateral displacement of the chimney.

17 In an incandescent lamp, the combination ot a burner, a mantle member comprising a support carried by the burner, a chimney having a transverse member engaging the mantle support whereby the chimney is solely supported.

18. In an incandescent lamp, the combination ot a burner, a mantle member comprising a support carried by the burner and hav-l ing a bent portion at its upper part, a chiinney having a transverse member extending diametrally across and engaging the bent portion of the mantle support whereby the chimney is solely supported, the chimney having means at its lower part to prevent its lateral displacement.

19. In an incandescent lamp, the combination of a chimney, a transverse member eX- tending across the chimney by which it is supported at its upper portion, and shade supporting means on the chimney connected with said chimney supporting member.

20. In an incandescent lamp, a burner member, a mantle support fitting on the burner member and having a portion at the top by which a mantle is carried, a chimney member having a band engaging it at its upper portion, a transverse member extending across between the opposite sides of the band and engaging the mantle support to thereby support the chimney solely at its upper portion, and shade supporting means carried by said band.

21. In a lamp for incandescent mantles, a burner member, a chimney, and a support carried by the burner and located inside of the chimney and engaging the upper part with the chimney whereby the chimney is solely supported.

22. In a lamp for incandescent mantles, a burner member, a chimney, a support carried by the burner and located inside of the chimney and engaging the upper part with the chimney whereby the chimney is solely supported, and means for engaging the chimney at its lower part to prevent lateral displacement.

23. In a lamp for incandescent mantles, a

burner member, a chimney, a support carried by the burner and located inside of the chimney and engaging the upper part with the chimney whereby the chimney is solely supported, the chimney having portions at its lower part engaging the said support to prevent lateral displacement.

24. In an incandescent lamp, a burner member, a mantle support carried by the burner member, a chimney carried solely by the mantle support, and means engaging the lower portion of the chimney to prevent lateral displacement.

25. In an incandescent lamp, a burner member, a mantle support carried by the burner member, a chimney carried solely by the mantle support at its upper portion, and means engaging the chimney at its lower part to prevent lateral displacement.

26. In an incandescent lamp, a burner 20 AMBROSE G. FELL.

itnesses:

FRED. J. DOLE, WILLIAM H. REID. 

